Remove incorrect duplicate batch skipping in ReorgAwareStream

The _is_duplicate_batch check was incorrectly skipping batches based only
on comparing ranges to the previous batch. This is wrong because:
1. Proper duplicate detection is handled by state_store.is_processed() in
   load_stream_continuous, which checks against ALL processed batches
2. The range-only comparison does not check hashes, so batches with same
   ranges but different data (after reorg) would be incorrectly skipped
3. After crash/restart, prev_ranges_by_network is empty anyway

Author: incrypto32

src/amp/streaming/reorg.py

@@ -49,13 +49,6 @@ def __next__(self) -> ResponseBatch:
             # Get next batch from underlying stream
             batch = next(self.stream_iterator)
 
-            # Note: ranges_complete flag is handled by CheckpointStore in load_stream_continuous
-            # Check if this batch contains only duplicate ranges
-            if self._is_duplicate_batch(batch.metadata.ranges):
-                self.logger.debug(f'Skipping duplicate batch with ranges: {batch.metadata.ranges}')
-                # Recursively call to get the next non-duplicate batch
-                return self.__next__()
-
             # Detect reorgs by comparing with previous ranges
             invalidation_ranges = self._detect_reorg(batch.metadata.ranges)